How to convert seconds to time format?

Maybe the simplest way is:

gmdate('H:i:s', $your_time_in_seconds);

If the you know the times will be less than an hour, you could just use the date() or $date->format() functions.

$minsandsecs = date('i:s',$numberofsecs);

This works because the system epoch time begins at midnight (on 1 Jan 1970, but that's not important for you).

If it's an hour or more but less than a day, you could output it in hours:mins:secs format with `

$hoursminsandsecs = date('H:i:s',$numberofsecs);

For more than a day, you'll need to use modulus to calculate the number of days, as this is where the start date of the epoch would become relevant.

Hope that helps.

$hours = floor($seconds / 3600);
$mins = floor($seconds / 60 % 60);
$secs = floor($seconds % 60);

If you want to get time format:

$timeFormat = sprintf('%02d:%02d:%02d', $hours, $mins, $secs);

This might be simpler

gmdate("H:i:s", $seconds)

PHP gmdate